US20050008275A1 - Bearing structure - Google Patents
Bearing structure Download PDFInfo
- Publication number
- US20050008275A1 US20050008275A1 US10/618,341 US61834103A US2005008275A1 US 20050008275 A1 US20050008275 A1 US 20050008275A1 US 61834103 A US61834103 A US 61834103A US 2005008275 A1 US2005008275 A1 US 2005008275A1
- Authority
- US
- United States
- Prior art keywords
- plastic ring
- ring
- bearing
- plastic
- shaped groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/067—Fixing them in a housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
- F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/30—Material joints
Definitions
- the present invention relates to a bearing, and more particularly to a bearing having a metal ring formed on a U-shaped groove defined in a plastic ring which encloses therein a rotation member so that a light weight yet high load capability bearing structure is formed.
- a conventional bearing as shown in FIG. 3 , usually is composed of a rotation member ( 6 ), a metal ring ( 7 ) enclosing therein the rotation member ( 6 ) and having a U-shaped groove ( 71 ) defined in an outer periphery of the metal ring ( 7 ) to allow a rope to be reeved therearound.
- the metal bearing is durable and has high load capability. However, the work for mounting the metal ring onto the rotation member is difficult and thus the fabrication cost of this type of bearing is high.
- another bearing is introduced to the market, which comprises a rotation member ( 8 ) and a plastic ring ( 9 ) mounted outside the rotation member ( 8 ) to enclose therein the rotation member ( 8 ) and having a U-shaped groove ( 91 ) defined in an outer periphery of the plastic ring ( 9 ) to allow a rope to be reeved therearound.
- This semi-plastic product involves only simple work to mount the plastic ring onto the rotation member so that the fabrication cost is low and required manpower is minimal due to automated production.
- this kind of semi-plastic bearing suffers a different kind of disadvantage. That is, the load capability of this semi-plastic bearing is low in that the plastic ring is easily worn as a result from the friction of the rope in the U-shaped groove. Thus, improvement is required to introduce an improved bearing.
- the present invention tends to provide an improved bearing to mitigate the aforementioned problems.
- the primary objective of the present invention is to provide an improved bearing having a plastic ring mounted outside the rotation member and a metal ring mounted outside the plastic ring such that the work for mounting the plastic ring on the rotation member is simple and the load capability is high due to the providing of the metal ring outside the plastic ring.
- FIG. 1 is an exploded perspective view of the bearing of the present invention
- FIG. 2 is a cross sectional view of the bearing of the assembled bearing of the present invention.
- FIG. 3 is a perspective view of a conventional bearing
- FIG. 4 is a perspective view of another conventional bearing.
- the bearing in accordance with the present invention has a rotation element ( 1 ) with an outer portion ( 11 ) and an inner portion ( 12 ) securely and rotatably received inside the outer portion ( 11 ), a plastic ring ( 3 ) securely mounted on an outer periphery of the outer portion ( 11 ) to allow the plastic ring ( 3 ) to rotate relative to the inner portion ( 12 ), the plastic ring ( 3 ) having a U-shaped groove ( 31 ) defined in an outer periphery thereof and a metal ring ( 4 ) securely mounted on the plastic ring ( 3 ) and having a second U-shaped groove ( 41 ) corresponding to the U-shaped groove ( 31 ) of the plastic ring ( 3 ).
- the plastic ring ( 3 ) is mounted on the rotation element ( 1 ) by an automated process such as injection molding. Thereafter, the metal ring ( 4 ) is securely mounted on the outer periphery of the plastic ring ( 3 ) by an automated process again, such as die casting, with the second U-shaped groove ( 41 ) aligned with the U-shaped groove ( 31 ) of the plastic ring ( 3 ).
Abstract
A bearing includes a rotation element, a plastic ring securely mounted on the rotation element and having a U-shaped groove defined in an outer periphery of the plastic ring and a metal ring securely mounted on the outer periphery of the plastic ring and having a second U-shaped groove aligned with the U-shaped groove of the plastic ring. Load capability of the bearing is high due to the addition of the metal ring on the plastic ring and manufacture cost is low because work involved in mounting the plastic ring on the outer portion is elementary.
Description
- 1. Field of the Invention
- The present invention relates to a bearing, and more particularly to a bearing having a metal ring formed on a U-shaped groove defined in a plastic ring which encloses therein a rotation member so that a light weight yet high load capability bearing structure is formed.
- 2. Description of Related Art
- A conventional bearing, as shown in
FIG. 3 , usually is composed of a rotation member (6), a metal ring (7) enclosing therein the rotation member (6) and having a U-shaped groove (71) defined in an outer periphery of the metal ring (7) to allow a rope to be reeved therearound. The metal bearing is durable and has high load capability. However, the work for mounting the metal ring onto the rotation member is difficult and thus the fabrication cost of this type of bearing is high. - In order to overcome the disadvantage of the conventional bearing, another bearing is introduced to the market, which comprises a rotation member (8) and a plastic ring (9) mounted outside the rotation member (8) to enclose therein the rotation member (8) and having a U-shaped groove (91) defined in an outer periphery of the plastic ring (9) to allow a rope to be reeved therearound. This semi-plastic product involves only simple work to mount the plastic ring onto the rotation member so that the fabrication cost is low and required manpower is minimal due to automated production. Still, this kind of semi-plastic bearing suffers a different kind of disadvantage. That is, the load capability of this semi-plastic bearing is low in that the plastic ring is easily worn as a result from the friction of the rope in the U-shaped groove. Thus, improvement is required to introduce an improved bearing.
- To overcome the shortcomings, the present invention tends to provide an improved bearing to mitigate the aforementioned problems.
- The primary objective of the present invention is to provide an improved bearing having a plastic ring mounted outside the rotation member and a metal ring mounted outside the plastic ring such that the work for mounting the plastic ring on the rotation member is simple and the load capability is high due to the providing of the metal ring outside the plastic ring.
- Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
-
FIG. 1 is an exploded perspective view of the bearing of the present invention; -
FIG. 2 is a cross sectional view of the bearing of the assembled bearing of the present invention; -
FIG. 3 is a perspective view of a conventional bearing; and -
FIG. 4 is a perspective view of another conventional bearing. - With reference to
FIG. 1 , the bearing in accordance with the present invention has a rotation element (1) with an outer portion (11) and an inner portion (12) securely and rotatably received inside the outer portion (11), a plastic ring (3) securely mounted on an outer periphery of the outer portion (11) to allow the plastic ring (3) to rotate relative to the inner portion (12), the plastic ring (3) having a U-shaped groove (31) defined in an outer periphery thereof and a metal ring (4) securely mounted on the plastic ring (3) and having a second U-shaped groove (41) corresponding to the U-shaped groove (31) of the plastic ring (3). - With reference to
FIG. 2 , when the bearing of the present invention is in assembly, it is noted that the plastic ring (3) is mounted on the rotation element (1) by an automated process such as injection molding. Thereafter, the metal ring (4) is securely mounted on the outer periphery of the plastic ring (3) by an automated process again, such as die casting, with the second U-shaped groove (41) aligned with the U-shaped groove (31) of the plastic ring (3). - After assembly, it is learned that the work involved to mount the plastic ring (3) on the outside the outer portion (12) of the rotation element (1) and the work required to mount the metal ring (4) outside the plastic ring (3) are simple such that the manufacture cost is low. Besides, because the metal has higher durability than that of the plastic, the metal ring mounted outside the plastic ring (3) increases the load capability when compared with the conventional bearing.
- It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (1)
1. A bearing comprising:
a rotation element composed of an outer portion and an inner portion rotatably received inside the outer portion;
a plastic ring securely mounted on an outer periphery of the outer portion and having a groove defined in an outer periphery of the plastic ring; and
a metal ring securely mounted on the outer periphery of the plastic ring and having a second groove aligned with the groove of the plastic ring,
whereby load capability is high due to the addition of the metal ring on the plastic ring and manufacture cost is low because work involved in mounting the plastic ring on the outer portion is easy.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/618,341 US20050008275A1 (en) | 2003-07-10 | 2003-07-10 | Bearing structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/618,341 US20050008275A1 (en) | 2003-07-10 | 2003-07-10 | Bearing structure |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050008275A1 true US20050008275A1 (en) | 2005-01-13 |
Family
ID=33565116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/618,341 Abandoned US20050008275A1 (en) | 2003-07-10 | 2003-07-10 | Bearing structure |
Country Status (1)
Country | Link |
---|---|
US (1) | US20050008275A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210332631A1 (en) * | 2019-01-12 | 2021-10-28 | Hetuo (shenzhen) Industrial Design Co., Ltd. | Door/window pulley, pulley device, and door/window |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US191981A (en) * | 1877-06-12 | Improvement in casting grooved pulleys | ||
US221879A (en) * | 1879-11-18 | Improvement in pulley-sheaves | ||
US410986A (en) * | 1889-09-10 | Anton mill | ||
US2230744A (en) * | 1938-07-22 | 1941-02-04 | Tyler Co W S | Support for elevator doors and the like |
-
2003
- 2003-07-10 US US10/618,341 patent/US20050008275A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US191981A (en) * | 1877-06-12 | Improvement in casting grooved pulleys | ||
US221879A (en) * | 1879-11-18 | Improvement in pulley-sheaves | ||
US410986A (en) * | 1889-09-10 | Anton mill | ||
US2230744A (en) * | 1938-07-22 | 1941-02-04 | Tyler Co W S | Support for elevator doors and the like |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210332631A1 (en) * | 2019-01-12 | 2021-10-28 | Hetuo (shenzhen) Industrial Design Co., Ltd. | Door/window pulley, pulley device, and door/window |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |